Which ion causes neurotransmitter vesicles to fuse with the axon's membrane during the conduction of a nerve impulse from one neuron to the next?
A) chlorine
B) sodium
C) potassium
D) calcium
E) magnesium

Question

Quizplus · Accepted Answer

Calcium is the ion responsible for causing neurotransmitter vesicles to fuse with the axon's membrane, allowing the release of neurotransmitters into the synaptic cleft and facilitating the conduction of a nerve impulse from one neuron to the next. Calcium influx triggers exocytosis of the neurotransmitter-containing vesicles. Chlorine, sodium, potassium, and magnesium do not have the same effect on neurotransmitter vesicle fusion.

Which Ion Causes Neurotransmitter Vesicles to Fuse with the Axon's